I have 4 that look like this. I'm pretty sure 2 are cockerels due to the sprouting of two longer feathers that sprouted on their tails. They only show when the tail is at a certain level but before that I thought they were all pullets. They're either out of my EE hen and EE roo or my buff Orpington and EE roo. I figured the one's that didn't have muffs were BO/EE but did I read the EE's can come out without muffs? Anyway, what do you think this one is?